Ibuprofen Impurity 99 CAS CATO-C4X-108299
| CAS No. | CATO-C4X-108299 |
| Molecular Formula | C18H27ClO2 |
| Molecular Weight | 310.86 g/mol |
| Category | Pharmacopoeial Impurity Standards / EP Impurities |
| Availability | In Stock |
Chemical Structure
Description
Ibuprofen Impurity 99 (C18H27ClO2) contains a steroid core, a hydroxyl group, an ether linkage, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
CATO supplies Ibuprofen Impurity 99 (CAS CATO-C4X-108299), a pharmacopoeial impurity reference standard (molecular formula C18H27ClO2, MW 310.86 g/mol) used for the identification and quantification of trace impurities in APIs.
This reference standard supports related-substances testing and method development in line with ICH Q3A/Q3B guidance on impurity control, and is suitable for system suitability testing and forced-degradation studies.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C18H27ClO2 |
| Molecular Weight | 310.86 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| Halogen Content | Cl-containing |
Related Ibuprofen Standards
- Ibuprofen Impurity 106 (CAS CATO-C4X-1082106)
- Ibuprofen Impurity 107 (CAS CATO-C4X-1082107)
- Ibuprofen Impurity 108 (CAS CATO-C4X-1082108)
- Ibuprofen Impurity 112 (CAS CATO-C4X-1082112)
- Ibuprofen Impurity 59 (CAS 89878-72-8)
- Ibuprofen Impurity 60 (CAS 89878-75-1)
- Ibuprofen Impurity 93 (CAS CATO-C4X-108293)
- Ibuprofen Impurity 94 (CAS CATO-C4X-108294)
Recommended Standards
- Ibuprofen Impurity 95 (CAS 89878-74-0)
- Trazodone EP Impurity G (CAS 2470436-00-9)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com